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How many Hydrogen are in 4H₂O?

• 6
• 8
• 2
• 4

How many Oxygen are in H₂O?

• 1
• 2
• 0
• 4

How many O's are in Al₂(SO₄)₃

• 4
• 12
• 7
• 24

Number of H in 3(NH₄)₂CrO₄

• 4
• 2
• 8
• 24

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

How many Sodium (Na) are in 6NaCl?

• 1
• 12
• 6

• 1

• 2

• 3

• 4

• 6

• 1

• 12

What is the total number of atoms in this formula? $H_2O_2$  

• 2

• 4

• 3